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LibWeb: Use Gfx::AntiAliasingPainter to draw SVG paths

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This is still quite bad, but it's much more pleasing to look at when
drawing random SVGs :^)
This commit is contained in:
Ali Mohammad Pur 2021-09-17 12:03:24 +04:30 • committed by Ali Mohammad Pur
parent e2cd558101
commit 5a2e7d30ce
4 changed files with 42 additions and 8 deletions
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12
Userland/Libraries/LibGfx/FillPathImplementation.h
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@ -46,6 +46,12 @@ void fill_path(Painter& painter, Path const& path, Color color, Gfx::Painter::Wi
{
using GridCoordinateType = Conditional<fill_path_mode == FillPathMode::PlaceOnIntGrid, int, float>;
using PointType = Point<GridCoordinateType>;
auto draw_line = [&](auto... args) {
if constexpr (requires { painter.draw_aliased_line(args...); })
painter.draw_aliased_line(args...);
else
painter.draw_line(args...);
};
auto const& segments = path.split_lines();
@ -130,7 +136,7 @@ void fill_path(Painter& painter, Path const& path, Color color, Gfx::Painter::Wi
// inside the shape
dbgln_if(FILL_PATH_DEBUG, "y={}: {} at {}: {} -- {}", scanline, winding_number, i, from, to);
painter.draw_line(from, to, color, 1);
draw_line(from, to, color, 1);
}
auto is_passing_through_maxima = scanline == previous.maximum_y
@ -153,7 +159,7 @@ void fill_path(Painter& painter, Path const& path, Color color, Gfx::Painter::Wi
active_list.last().x -= active_list.last().inverse_slope;
} else {
auto point = PointType(active_list[0].x, scanline);
painter.draw_line(point, point, color);
draw_line(point, point, color);
// update the x coord
active_list.first().x -= active_list.first().inverse_slope;
@ -183,7 +189,7 @@ void fill_path(Painter& painter, Path const& path, Color color, Gfx::Painter::Wi
if constexpr (FILL_PATH_DEBUG) {
size_t i { 0 };
for (auto& segment : segments) {
painter.draw_line(PointType(segment.from), PointType(segment.to), Color::from_hsv(i++ * 360.0 / segments.size(), 1.0, 1.0), 1);
draw_line(PointType(segment.from), PointType(segment.to), Color::from_hsv(i++ * 360.0 / segments.size(), 1.0, 1.0), 1);
}
}
}